Physics, 03.02.2020 04:47 ErrorNameTaken505
Astone is thrown vertically upward with a speed of 18.0 . (a)how fast is it moving when it reaches a height of 11.0 ? (b)how long is required to reach this height?
for part a) i did: y=11m, g=9.81m/s^2, vy0= 18 m/s, y0=0, (v^2)y=?
v^2 y= v^2 y0- 2g (y-y0)
--> v^2 y=18^2m/s-2(9.8)(11m-0m)
--> vy=square root ( 324m/s-215.6)= 10.4m/s
part b) i started out with:
y=y0 + vy0t - (1/2) gt^2
--> 11= 18t m/s-(1/2) 9.8t^2
--> -11 + 18t- 9.8t^2
Answers: 2
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Choose the most likely outcome of this scenario: jen decided to go bike riding without a helmet. while no one is around during her ride, she is thrown from her bike when her wheel goes into a pothole. she is not injured, but she is terrified to get back on her bike. what happens next? a. her physical health is affected even though she wasn't hurt. b. her mental and emotional health are affected because she is afraid to get back on her bike. c. her social health is affected because she is worried her friends saw the fall. d. her overall health is not affected at all by her fall.
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Astone is thrown vertically upward with a speed of 18.0 . (a)how fast is it moving when it reaches a...
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